#include <57header.h>

void *func(void *p){
    printf("i am son thread \n");
    return NULL;
}
int main(int argc,char*argv[])
{
    pthread_t son_id;
    int res = pthread_create(&son_id, NULL, func, NULL);
    THREAD_ERROR_CHECK(res, "pthread_create");


    printf("i am main thread \n");

    usleep(20);

    return 0;
}

